A bold and rugged, yet luxurious SUV, your Mercury Mountaineer never fails to deliver unbeatable performance. Don't let misfiring spark plugs get in the way of your driving experience and equip your vehicle with a new Mercury Mountaineer spark plug from AutoZone.

The spark plugs in your vehicle have to handle an immense amount of pressure every time you get behind the wheel of your Mountaineer. If the spark plugs in your vehicle get too hot, the engine fuel in your vehicle could ignite before the spark fuel fires. When this happens, it's best to replace your spark plugs with new spark plugs for Mercury Mountaineer from AutoZone. To make sure that you select the right temperature range of spark plugs for your daily driver, our friendly staff members are here to help. You can also benefit from free battery charging and engine diagnostic testing the next time you visit your local store.